A good launch title with impressive looks and is entertaining for both children and adults.
It's a very pretty game, especially in HD.. with a good use of color. Definitely worth a peek just for the eye candy. Especially for some large-scale battle sequences in the badlands.
The only real negatives I could find for this game is the single player isn't all that long.. and is quite linear. If it took 20 hours to complete instead of 10.. and was a little more open-ended and promoted exploration.. I'd call it an instant classic.
Co-Op mode is pretty nifty.